BIND 9.10 fast only on alias IP

[Klaus Darilion]

Am 20.05.2019 um 20:16 schrieb Ict Security:
> How could i increase the number of socket on a single IP address,
> since Bind is working perfectly on the secondary address,
> when the first one is stucked?

If the incoming traffic is bursty it may happen that the receive queue 
of the socket is full and hence packets are dropped.

You can try to increase the receive queue with sysctl (just google). But 
if you make it too big, you may queue too much requests and start to 
queue also retransmission.

regards
Klaus